package status;

public class TestSleep{

    public static void numDown() throws InterruptedException {
        int num = 5;
        while (true) {
            Thread.sleep(1000);
            System.out.println(num--);
            if (num<=0) {
                break;
            }
        }

    }

    public static void main(String[] args) throws InterruptedException {
        TestSleep.numDown();
    }
}
